Brown University Grad - 3.45/154 - What to do?

I am a URM (AA) and female. Took the LSAT for the first time in October. Didn't score as well as I wanted to so now I am contemplating going with the score of 154 or taking it again and risk being late in the admissions cycle. Very good soft features (presidential ambassador, national athlete, commencement award winner).

Need help on making this decision...Submit App Now - Take December LSAT???